Guidelines for Using the Privacy Mechanism for SIP
RFC 5379
Independent Submission M. Munakata
Request for Comments: 5379 S. Schubert
Category: Informational T. Ohba
ISSN: 2070-1721 NTT
February 2010
Guidelines for Using the Privacy Mechanism for SIP
Abstract
This is an informational document that provides guidelines for using
the privacy mechanism for the Session Initiation Protocol (SIP) that
is specified in RFC 3323 and subsequently extended in RFCs 3325 and
4244. It is intended to clarify the handling of the target SIP
headers/parameters and the Session Description Protocol (SDP)
parameters for each of the privacy header values (priv-values).
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This is a contribution to the RFC Series, independently of any other
RFC stream. The RFC Editor has chosen to publish this document at
its discretion and makes no statement about its value for
implementation or deployment. Documents approved for publication by
the RFC Editor are not a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5379.
Copyright Notice
Copyright (c) 2010 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document.
Munakata Informational [Page 1]
RFC 5379 SIP Privacy Guidelines February 2010
Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................3
3. Semantics of Existing priv-values ...............................4
4. Target for Each priv-value ......................................5
4.1. Target SIP Headers for Each priv-value .....................5
4.2. Target SDP Parameters for Each priv-value ..................6
4.3. Treatment of priv-value Not Supported by the
Privacy Service ............................................7
5. Recommended Treatment of User-Privacy-Sensitive Information .....7
5.1. Target SIP Headers .........................................7
5.1.1. Call-ID .............................................7
5.1.2. Call-Info ...........................................8
5.1.3. Contact .............................................8
5.1.4. From ................................................9
5.1.5. History-Info .......................................10
5.1.6. In-Reply-To ........................................10
5.1.7. Organization .......................................11
5.1.8. P-Asserted-Identity ................................11
5.1.9. Record-Route .......................................12
5.1.10. Referred-By .......................................13
5.1.11. Reply-To ..........................................14
5.1.12. Server ............................................14
5.1.13. Subject ...........................................15
5.1.14. User-Agent ........................................15
5.1.15. Via ...............................................15
5.1.16. Warning ...........................................16
5.2. Target SDP Parameters .....................................16
5.2.1. c/m Lines ..........................................16
5.2.2. o Line .............................................17
5.2.3. i/u/e/p Lines ......................................17
5.3. Considerations for Non-Target SIP Headers/Parameters ......17
5.3.1. Identity/Identity-Info .............................17
5.3.2. Path ...............................................18
5.3.3. Replaces Header/Parameter ..........................18
5.3.4. Route ..............................................21
5.3.5. Service-Route ......................................21
5.3.6. Target-Dialog ......................................21
6. Security Considerations ........................................21
7. Acknowledgements ...............................................22
Show full document text